i don't think this is a greedy behavior because some of people want to hold it until another folk coming
and some people is a true fans in bitcoin ,
No it is not, why? Because having a bitcoin is an investment, for you to secure your future. If you are dreaming of a better life that does mean you are being greedy? I don't think so.
Yes and it is the right of everyone to think about their future and their saving for family, so if you have some saving it means you are a responsible person and you are worried about the coming days. Some people call it as greed but it is just to discourage you it has no concern with reality so save bitcoin as much as you can save without any hesitation. It is your wise decision to save bitcoin and hold for the long time.